제출 #226265

#제출 시각아이디문제언어결과실행 시간메모리
226265dolphingarlicDragon 2 (JOI17_dragon2)C++14
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> typedef long long ll; using namespace std; struct Point { ll x, y; } A, B; bool ccw(Point X, Point Y, Point Z) { return (X.x - Y.x) * (Z.y - Y.y) <= (X.y - Y.y) * (Z.x - Y.x); } vector<Point> by_t[30001]; int main() { int n, m, q, x, y; scanf("%d %d", &n, &m); while (n--) { scanf("%d %d %d", &A.x, &A.y, &A.q); by_t[q].push_back(A); } scanf("%d %d %d %d %d", &A.x, &A.y, &B.x, &B.y, &q); while (q--) { scanf("%d %d", &x, &y); m = 0; for (Point i : by_t[x]) for (Point j : by_t[y]) { if (ccw(i, A, B)) m += (ccw(i, A, j) && ccw(j, B, i)); else m += (ccw(j, A, i) && ccw(i, B, j)); } printf("%d\n", m); } return 0; }

컴파일 시 표준 에러 (stderr) 메시지

dragon2.cpp: In function 'int main()':
dragon2.cpp:15:36: error: 'struct Point' has no member named 'q'
   scanf("%d %d %d", &A.x, &A.y, &A.q);
                                    ^
dragon2.cpp:18:52: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'll* {aka long long int*}' [-Wformat=]
  scanf("%d %d %d %d %d", &A.x, &A.y, &B.x, &B.y, &q);
                          ~~~~                      ^
dragon2.cpp:18:52: warning: format '%d' expects argument of type 'int*', but argument 3 has type 'll* {aka long long int*}' [-Wformat=]
dragon2.cpp:18:52: warning: format '%d' expects argument of type 'int*', but argument 4 has type 'll* {aka long long int*}' [-Wformat=]
dragon2.cpp:18:52: warning: format '%d' expects argument of type 'int*', but argument 5 has type 'll* {aka long long int*}' [-Wformat=]
dragon2.cpp:13:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~~
dragon2.cpp:18:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d %d %d %d", &A.x, &A.y, &B.x, &B.y, &q);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
dragon2.cpp:20:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d", &x, &y);
   ~~~~~^~~~~~~~~~~~~~~~~